West Berkshire · England
Sand mastic for sash & case windows in Eastbury, West Berkshire
Problem with your window and door surrounds in Eastbury? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Gaps between timber frames and stone or brick
- Patchy fillers round a sash window
- Mastic worn away on windows facing the weather
Windows and doors in Eastbury
The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
In and around Eastbury, as anywhere, good sand mastic starts with a clean, dry, properly prepared joint.
Eastbury is about 8 miles south-west of Wantage, in West Berkshire. Our applicators cover sand mastic for homes and businesses in Eastbury and the surrounding area, as part of our work across West Berkshire. Across West Berkshire, we cover 155 places, Eastbury among them. You can also see our page for Oxford, about 21 miles away.
Every address in RG17 is within our area for sand mastic, from the main roads to the quietest streets. Nearby, we also carry out sand mastic in East Garston (1 mile east), East Garston Woodlands (1 mile south), Shefford Woodlands (3 miles south), Great Shefford (3 miles south-east) and East Shefford (3 miles south-east). We also work in nearby towns such as Newbury (10 miles south-east), Thatcham (12 miles south-east), Speenhamland (10 miles south-east), Hungerford (6 miles south), Shaw (10 miles south-east) and Wash Common (10 miles south-east).
Around Eastbury
For a walk, there’s Watts Bank.
How we handle sand mastic in Eastbury
A silicone bead around a sash window can look out of place and doesn’t suit the building. Sand mastic gives a finish that matches the age of the house, and we can replace one with the other. Typical jobs include gaps between timber frames and stone or brick and wind and rain getting in round a sash window, on sash and case windows, tenement windows and period & listed homes.
Mastic can only go onto a dry, clean joint, so window work in Eastbury is booked around the forecast. Tell us about access to every side of the house, including upper-floor windows.
All of our work is guaranteed for twelve months.
- Location
- Eastbury (RG17)
- Wider area
- West Berkshire
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Places near Eastbury
Also in Eastbury
How to look after the new joints
Simple care keeps the joints in good condition. We recommend:
- Go gently near the mastic when preparing windows
- Plan mastic work ahead of painting
- Keep modern sealant off the mastic
- Leave the new mastic unpainted
Keep paint scrapers and sanders off the mastic when redecorating. Hard scraping can loosen it.
Once mastic starts to crumble, rain gets in. That water can reach the timber frame and the wall, so renewing it early is worth it.
Why deal with it now?
Before painting the windows, it pays to renew the mastic. Painting over failed mastic doesn’t seal it, and the new mastic is traditionally left unpainted. Around Eastbury, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Doing several joints on one visit generally makes better use of the time than several visits, so tell us about everything that needs sealing. We’ll give you a clear price for the lot.
What you get with us
- 20+ years of sealant experience
- 4.9 on Google from 180+ five-star reviews
- Trusted Arbo and Everbuild sealants
- We leave the area clean and tidy
What we do, step by step
When we arrive, we start by going over the job with you, so there are no surprises. We protect the surfaces around the joints before we start. The work usually takes a few hours per window, depending on the condition of the joints. Somewhere as small as Eastbury, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We start by checking each surround and agreeing the joints to renew.
- The loose and crumbling mastic is raked out and the joint cleaned.
- We pack any deep gaps so the mastic sits at the right depth.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- We dress the surface so it sits neatly against the masonry.
Getting ready for the visit
- Let us know about earlier repairs to the joints
- Tell us about access, such as stairs, a lift or high-level joints
- Let us know if you’ve seen damp or leaks
How to get a quote
Asking for a quote is easy: let us know the job and the location and its rough size. A few pictures by email make the job easier to understand.
Advice
Surface by surface
Timber door frames
Doors face weather and wear, so their mastic can fail sooner. It’s renewed by hand.
Brick reveals
Gaps between frame and brick let in rain and draughts. New mastic seals the gap.
Eastbury: your questions answered
Is sand mastic in Eastbury guaranteed?
Every job comes with our one-year guarantee, wherever it is. We’re fully insured, and an ARBOMaster approved applicator.
Will you come out to Eastbury?
Yes, Eastbury is covered. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
What do you put in the joint?
We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice, and we’ll tell you what we’re using.
Are you ARBOMaster approved?
Yes. We’re approved under the ARBOMaster scheme, the approved applicator scheme for Arbo sealants.
Is it worth trying it myself?
That depends on the joint. High-level, external movement and fire-rated joints are professional jobs.
Are you fully insured?
Yes, we are fully insured for domestic and commercial work.
Is it messy?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
I’m a tenant. Can you help?
Yes, but check with your landlord or agent first. Landlords are often happy for the work to be arranged.
For landlords and businesses
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
If you manage several properties in or around Eastbury, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs, and photos by email help.
What sealant work cannot fix
A few problems are outside what sealant work can do:
- Sashes that rattle, stick or won’t open
- Putty and glazing repairs
- Masonry that needs repairing
If in doubt, phone 0345 464 0079 or drop us an email and we will say what we think.
Where we work in Eastbury
- Sash and case windows
- Brick reveals
- Stone surrounds
- Tenement windows
- Timber door frames
- Period & listed homes
Common problems we fix in Eastbury
Decorating can disturb tired mastic. It’s often found when windows are being prepared for paint.
If you can see any of these, it’s time to have the joints looked at:
- Gaps between timber frames and stone or brick
- A silicone bead on a sash window that spoils the look
- Window mastic to renew ahead of painting
- Old cement repairs round a window that have failed
If you live in an older home near Church of St James, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Questions to ask before booking
- How the colour is chosen
- Who does the work, and how experienced they are
- What preparation is included
- Whether all the old sealant comes out first